Q&A #20 - Testing for half and full distance triathlon: are typical 20-minute tests relevant, and are there better options?

Q&A #20 - Testing for half and full distance triathlon: are typical 20-minute tests relevant, and are there better options?   How relevant are typical field tests (20-minute bike and run Time Trials, 400 + 200 m Critical Swim Speed test) for half and full Ironman athletes?  How skewed are these tests by athletes' anaerobic capacity?  Can and should Muscular Endurance be tested?  What is the role of race intensity training, if it isn't to improve threshold or VO2max? How important is VO2max (aerobic capacity) anyway for long distance triathlon? The little-known but massively important Ironman training and testing weapon: Lactate Building Rate, VLaMax   LINKS AND RESOURCES:   That Triathlon Show website  Coaching Training Plans Intermediate Ironman 20-week Training Plan (use coupon code "60" for 60% off until 10th February):  Running pace, bike power version Running pace, bike heart rate version Running power and bike power version INSCYD software INSCYD Boulder Workshop - Youtube video     RATE AND REVIEW:   If you enjoy the show, please help me out by subscribing, rating and reviewing.      CONTACT:   Want to send feedback, questions or just chat? Email me at [email protected] or connect on Twitter - my handle is @SciTriat.